Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

31 hosts · 372 ms

HostCertsFirst seenLast seenDNS
weldre4.org 12 2026-05-04 2026-09-30 ok
*.weldre4.org 7 2026-05-04 2026-09-30 —
id.weldre4.org 1 2026-07-21 2026-07-21 ok
bond.weldre4.org 3 2026-05-17 2026-09-06 ok
oh.weldre4.org 5 2026-05-04 2026-09-08 ok
www.oh.weldre4.org 5 2026-05-04 2026-09-08 ok
hl.weldre4.org 5 2026-05-04 2026-09-08 ok
www.hl.weldre4.org 5 2026-05-04 2026-09-08 ok
smsfootball.weldre4.org 3 2026-05-15 2026-08-31 ok
shs.weldre4.org 5 2026-05-04 2026-09-08 ok
www.shs.weldre4.org 5 2026-05-04 2026-09-08 ok
whs.weldre4.org 5 2026-05-04 2026-09-08 ok
www.whs.weldre4.org 5 2026-05-04 2026-09-08 ok
rms.weldre4.org 5 2026-05-04 2026-09-08 ok
www.rms.weldre4.org 5 2026-05-04 2026-09-08 ok
sms.weldre4.org 5 2026-05-04 2026-09-08 ok
www.sms.weldre4.org 5 2026-05-04 2026-09-08 ok
wms.weldre4.org 5 2026-05-04 2026-09-08 ok
www.wms.weldre4.org 5 2026-05-04 2026-09-08 ok
et.weldre4.org 3 2026-05-03 2026-08-17 ok
gv.weldre4.org 5 2026-05-04 2026-09-08 ok
www.gv.weldre4.org 5 2026-05-04 2026-09-08 ok
mv.weldre4.org 5 2026-05-04 2026-09-08 ok
www.mv.weldre4.org 5 2026-05-04 2026-09-08 ok
rv.weldre4.org 5 2026-05-04 2026-09-08 ok
www.rv.weldre4.org 5 2026-05-04 2026-09-08 ok
sv.weldre4.org 5 2026-05-04 2026-09-08 ok
www.sv.weldre4.org 5 2026-05-04 2026-09-08 ok
www.weldre4.org 5 2026-05-04 2026-09-08 ok
tz.weldre4.org 5 2026-05-04 2026-09-08 ok
www.tz.weldre4.org 5 2026-05-04 2026-09-08 ok

Programmatic access, with DNS A records: API GET /v1/hosts/weldre4.org (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/weldre4.org.